#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
int main()
{
    int a = 0, b = 0, c = 0, s = 0, d=1, e = 0;
    scanf("%d %d", &a, &b);
    c = a * b;
    while (c != 0)
    {
        s *= 10;
        s += c%10;
        c = c / 10;
    }
    printf("%d", s);

    return 0;
}